in the evaporator is short circuit.
“E4” indicates that the defrost sensor
in the evaporator is open circuit.
“E5” indicates the defrost heater
failure.
“E6” indicates the solenoid valve
failure.
E7” indicates the door switch failure.
The alarm sounds
and the temperature
display flashes.
Has the appliance door been open for
longer than 60 seconds? If not, then
the temperature has risen higher or
fallen lower than the temperature that
has been set. This could be due to:
The appliance door being opened too
often.
The ventilation opening being
covered or too dusty.
A lengthy interruption to the power
supply.
A large amount of bottles has been
added to the unit.
If yes, close the door.
Do not open the door more often
than necessary.
Clear the obstructions and clean
the dust.
Leave the appliance to work for a
while until the set temperature has
been reached.
The icon “--” is lit up
and flashing in the
temperature display.
The display temperature is out of the
range.
Only temperatures within the range
0~99°F/-9~37°C the appliance can
display will be shown. If the
temperature is not within this
range, the icon “--” will be displayed
instead. That is normal.
8.2 DIAGNOSIS GUIDE
Remember, before entering the sealed system, all other systems must be tested and properly
repaired. These include the electrical system, control operation, and air flow systems:
evaporator and condenser motors. Before "turning a screwdriver", many checks can be made
simply by using your senses:
LISTEN:
What is the customer complaint?
Are the fans operating?
Is the compressor operating?
LOOK:
Is the light on/off when the switch is operated?
What the control panel display?
Are the controls set properly?
Do door gaskets seal properly?
TOUCH:
Is air felt exhausting from the bottom grille?
Is air circulating in the compartments?
Is the quarter inch discharge line from the compressor hot?
Is the condenser hot for free-standing models?
Is the hot pipe hot?
